AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 1981ER42 ∴ Summary
Contact »
(17394) 1981ER42  ▹ 
SUMMARY
Keplerian elements at epoch
58400.0 MJD
Value 1-σ variation Units
a 3.07796 1.884e-08 au
e 0.10121 4.092e-08
i 1.556 4.754e-06 deg
Ω 12.31 0.0001574 deg
ω 25.622 0.0001595 deg
M 118.094 2.503e-05 deg

More info »
Other useful info
Absolute Magnitude (H)    13.9 mag
Slope parameter (G)    0.15 mag
Perihelion 2.7664 au
Aphelion 3.3895 au
Asc. node-Earth separation 1.79178 au
Desc. node-Earth separation 2.35095 au
Earth MOID 1.77318 au
Orbital period 1972.39 days
Date of orbit computation  Oct 31 05:07
Observational summary
Optical observations (Discarded) 1189 (9)
Radar observations (Discarded) 0 (0)
Arc length 14457.3 days
Unobserved 321 days

More info »
Ephemeris at epoch 58563 MJD
Right Ascension 194.873 deg
Declination -6.30996 deg
V Magnitude 18.87 mag
Solar Elongation 163.7 deg
Galactic Latitude 56.5 deg
Rate 0.183 deg/day
Direction -69.208 deg

More info »





This Web Site has been visited 86940 times since

and this Page has been visited 84 times since 2011/10/24